Detonating device.



Nn. 639,906. Patented Dec. 3|, 190|.

s. M. POTTER. nEToNATmG nEvicE.

(Appunation med Aug. '1,' 1901? .No model.)

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GEORGE M. POTTER, OF CLEVELAND, OHIO.

DETONATING DEVICE.

SPECIFICATION forming part of Letters Patent No. 689,906, dated December 31, 1901. Application filed August 7, 1901. Serial No. 71,223. (No model.)

T0 all whom it may concern:

Be it known that l, GEORGE M. POTTER, a citizen of the United States, residing at Cleveland, in the county of Cuyahoga and State of Ohio, have invented a new and useful Improvement in Detonating Devices, of which the following is a specification.

This invention relates to detonatingdevices, and has particular reference to a structure which is stronger, cheaper, and safer than those heretofore produced, said structure being shown in the accompanying drawings, in which* Figure l is au elevation of the detonating device mounted upon a cane or staff. Fig. 2 is a sectional elevation of the detonating device, the same being taken on the line 2 2 of Fig. 3. Fig. 8 is a plan view of the same, and Fig. 4 shows a portion of the mold with the cores in position for casting the detonating device.

Like reference characters designate corresponding parts throughout the several views of the drawings.

2 represents a stai or cane of any desired size or length, and 3 is the detonating-head, which is provided with a socket 4 in its upper end, into which is secured the lower end of the cane. While I prefer to secure the head to a cane in the manner shown, it is evident that it may be supported in any other suitable way, the only requirement being that it be dropped, so that the detonating-bolt strikes first to explode the torpedo. The head is shown as pear-shaped, although any other suitable design may be used instead.

In substantially the center of the detonating-head there is formed an explosive-cham ber 5, which communicates with the outside through the two openings 6 and 7. The latter opening is preferably rectangular in section, as shown in Fig. l, and its upper surface is substantially in the saine plane as the upper surface of the explosion-chamber. The opening 6 is smaller in diameter than the chamber with which it communicates, so that an annular shoulder is formed at S, upon which rests the head 9 of the detonating-bolt l0. This bolt extends outwardly through the opening 6, which it loosely iits, and projects some distance beyond the detonating-head 3. The head 9 also tits loosely in the explosionchamber, so that the bolt is capable of longitudinal movement in the head, and is so shaped that all sections taken on planes which are parallel with the axis of the bolt are substantially rectangular. From this description it will be understood that when a torpedo is inserted into the explosion-chamber through the opening '7 and the detonating de` vice dropped with the bolt lO pointing downwardly it will be caught between the head 9 and the upper surface of the chamber 5 and will be exploded. The force of this explosion necessitates a very strong detonating-head, particularly above the bolt-head. Heretofore the partition separating the explosion-chamber and the socket 4E has been formed from a separate piece, which has been inserted into the socket and secured in place by a rivet or otherwise. This makes a structure which is so expensive that the device cannot be man keted with a profit. No way has been found to overcome this objection, however, since it has been regarded as impossible to cast the detonatingehead and the partition in one piece with the bolt in position. I have invented a method for doing this, however, so that my detonating devices are extremely strong and, moreover, are so cheaply made that they can be sold with a profit.

Fig. 4 shows a longitudinal section through a mold which is prepared for casting in one operation my improved detonating device, 1l representingthe sand in the cope and l2 that in the nowel. 13 is the mold itse1f,int0 which projects the core 14 for forming the socket 4i, and also the core l5 for forming the opening 7. This core l5 is provided with an enlarge ment at its upper end, said enlargement being formed about the head 9 of the bolt lO, so that the bolt really forms part of the core. When placed in the mold, as shown in Fig. 4, the bolt lies horizontally and rests with its outer end between the sand of the cope and the nowel. In order to provide sufficient space between the head 3 and the bolt l0 and to prevent the molten metal from freezing fast to the bolt, I iirst coat the latter with a thin layer of some material which is more or less refractory. Preferablyl employ sand. This is caused to adhere to the bolt by covering it with oil or some other material which will gather up the sand, after which the bolt,

IOO

With its coat of sand, is baked. The core 15 is then formed about the bolt-head, as described. After the Inold is poured and the detonating-head is cast it is placed in the ordinary tumbler for castings, and the tuinbling jars out the sand and loosens the bolt, after which the device is finished for the inarket.

It Will of course be understood that thev mold is formed from a pattern in the usual Way, after Which the cores are inserted to give the desired casting.

If it should be desired, a Hag or other emblem could be secured to the cane or staff,and for that purpose I have shown the upper end of the same bored at 16, into Which the staff of the Hag may be inserted.

Having thus described my invention, what Iclaim as new, and desire to secure by Letters Patent, ism

l. In adevice of the character described, a detonating-head which is cast in a single piece and has an explosion-chamber, an opening for torpedoes leading to said chamber, a second opening of smallerbore than the chamber leading thereto, and a bolt projecting from said opening, said bolt having a head integral therewith, which head is movable `Within the explosion-chamber, and which is rectangular in cross-sections taken on planes which are parallel with the axis of the bolt.

2. In a device of the character described, a detonating-head having an explosion-chamber, an opening for torpedoes leading to said chamber, a second opening of smaller bore than the chamber leading thereto, a headed bolt projecting from said opening, the head of the bolt being capable of movement in the explosion-chamber, a socket for a cane in the detonating-head, and a partition integrall with the other portions of the detonatinghead and separating the socket and eXplosion-chamber.

In testimony whereof I affix my signature in the presence of two witnesses.

GEORGE M. POTTER.

Vitnesses:

A. C. LUTZ, C. N. Fiscus. 

